Ogier started his WRC career with Citroen and took his first seven wins there, but split with the team at the end of 2011 amid tension with his then team-mate Sebastien Loeb.

Citroen team principal Pierre Budar said there was no rush to announce anything for 2019.

"We have no fixed timetable for any announcement," he said. "I can't tell you it will be next week or next month.

"We have to make sure everything is completely clear until we make this announcement and I'm not the only one involved in this - we will do this when we are all ready."

When asked if his preference was for a three-year agreement with Ogier, Budar added: "We will see."

Citroen last won a WRC title with Loeb in 2012, and has taken just seven wins since then - with the marque briefly stepping back into a semi-works capacity.

It relaunched its factory team with the C3 model for the new rules in 2017, but finished last in the manufacturers' championship and then split with its intended '18 title contender Kris Meeke in the middle of this season.

Ogier's current boss Malcolm Wilson was adamant he has not given up on retaining the champion.

"You never know what can happen," said Wilson.

"We've been working on this for a long time and we won't stop.

"Retaining Sebastien has been the focus of our plans for next year and it remains so. We'll keep working at it."